Celiac disease eating protein powder stomach bloating may be caused by intolerance of the stomach and intestines to protein powder, it may also be caused by indigestion. 1. protein powder intolerance: protein powder intolerant patients lack the enzyme that breaks down protein powder, resulting in protein powder in the body can not be digested, thus appearing to eat protein powder stomach bloating symptoms. 2. indigestion: patients with celiac disease have poor gastric function, various types of digestive enzyme secretion is reduced, indigestion. The protein powder contains a lot of protein, which can not be digested in time can appear stomach bloating. Patients with celiac disease are advised to go to the hospital in time, usually should eat more easy to digest, light food, and strictly follow the doctor’s instructions for medication.